fzus61 kbuf 201402
glflo 
expires:202608202100;;052078

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu aug 20 2026

for waters beyond five nautical miles of shore on lake ontario

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a 30.1 inch high over the upper great lakes will build 
southeast across southern ontario and quebec today and tonight, 
before sliding across new england friday, then into the canadian 
maritimes saturday. an elongated 29.7 inch low will slowly make its 
way from the central great lakes to western quebec saturday and 
sunday, then will wobble about western quebec through at least 
monday.


loz062-202100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt thu aug 20 2026

.this afternoon...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.tonight...east winds 10 knots or less becoming north. waves
1 foot or less. 
.friday...northeast winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.friday night...east winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots becoming southwest.
showers with a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...west winds 10 to 15 knots. a chance of showers. waves
1 to 3 feet building to 2 to 4 feet. 
.monday...west winds 10 to 15 knots. a chance of showers during
the day. waves 2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 201940
glflh 
expires:202608210345;;066727

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt thu aug 20 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.00 inches, builds into the great
lakes today and friday. the next low pressure system then arrives
saturday, dragging a cold front across the area and increasing
shower and thunderstorm chances. post-frontal northwest flow
leads to gusty winds sunday.


lhz361>363-210345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
340 pm edt thu aug 20 2026

.tonight...light and variable winds becoming east 5 to 10 knots
by midnight...then veering to the southeast early in the morning.
waves 2 feet or less. 
.friday...south winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. a chance of showers
in the afternoon. waves 1 to 3 feet building to 2 to 4 feet in
the afternoon. 
.friday night...southeast winds 10 to 15 knots. a chance of
showers. a chance of waterspouts after midnight. waves 3 to
5 feet. 
.saturday...south winds 5 to 10 knots. a chance of waterspouts in
the morning. showers in the morning...then showers and a chance
of thunderstorms in the afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and afternoon. 
.saturday night...northwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. a chance of
showers. waves 4 to 6 feet. waves occasionally around 8 feet. 
.sunday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots late in the evening. gusts to 30 knots. a chance of 
showers in the morning. a chance of waterspouts in the morning. 
waves 8 to 12 feet. waves occasionally around 15 feet. 
.monday...northwest winds 15 to 20 knots becoming west 5 to
10 knots. waves 4 to 6 feet. waves occasionally around 8 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest
until early evening...then becoming south 10 to 15 knots by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 201940
glflh 
expires:202608210345;;066728

open lake forecast for lake huron
national weather service detroit/pontiac mi
340 pm edt thu aug 20 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...high pressure, 30.00 inches, builds into the great
lakes today and friday. the next low pressure system then arrives
saturday, dragging a cold front across the area and increasing
shower and thunderstorm chances. post-frontal northwest flow
leads to gusty winds sunday.


lhz462>464-210345-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
340 pm edt thu aug 20 2026

.tonight...northeast winds 5 to 10 knots veering to the east
after midnight. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.friday night...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.saturday...south winds 5 to 10 knots. a chance of showers in the
morning...then showers and a chance of thunderstorms in the
afternoon. a chance of waterspouts. waves 1 to 3 feet. 
.saturday night...west winds 5 to 10 knots becoming northwest
15 to 20 knots in the late evening and overnight. showers likely
and a chance of thunderstorms in the evening...then showers
likely after midnight. waves 1 to 3 feet building to 4 to 6 feet
in the late evening and overnight. waves occasionally around
8 feet. 
.sunday...northwest winds 15 to 20 knots increasing to 20 to
25 knots late in the morning...then decreasing to 15 to 20 knots
late in the evening. gusts to 30 knots. a chance of waterspouts.
a chance of showers. a chance of thunderstorms late in the
afternoon. waves 6 to 9 feet. waves occasionally around 11 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots . waves 4 to 6 feet subsiding to 1 to 3 feet by
midnight. waves occasionally around 8 feet. 
.tuesday...west winds 5 to 10 knots backing to the southwest
early in the evening...then becoming south 10 to 15 knots by
midnight. waves 2 feet or less. 


$$